What should you carry with you when you walk? It depends on how far you are going and how big of a pack you want to carry, but I have a bare minimum of items I always take with me and that fit either into my pockets, into my fanny pack, or into my backpack.
mini LED flashlight and/or a small Swiss Army knife to have a couple more essentials at hand.
2. Water Bottle
Unless you are taking a short walk of a half hour or less, you will want a drink of water. Include a water fountain along your route, or take it with you. I have a variety of water carrier fanny packs and hydration backpacks - a whole wardrobe to choose from depending on how far I'll be walking. It is best to strap on your water bottle rather than carrying it in your hand, as a pound of water in your hand can strain your shoulder, elbow, and wrist.
3. IDHeaven forbid something should happen to you on your walk, but in case it does, the ambulance or police will need to know who you are. This is especially true since US hospital privacy rules have been enacted, and unless they know who you are they can't tell your loved ones you are in the hospital. You may also need photo ID to enter government buildings and historic sites. If you want to go light, use a Shoe Wallet to carry ID and money and your key - on your shoe!
4. TissuesWhether it's your nose dripping, your eyes watering, or no toilet paper in the restroom, you are likely to need a tissue along the walk.
5. MoneyEven on a short walk, I don't like going out without a few dollars on me. You just never know when you'll need to use a pay phone, or buy a latte, or run into a rummage sale with just the right thing you've always been looking for. Again, a shoe wallet can be convenient for those wanting to go light.
6. Mobile Phone
Ah, I remember the good old days when people babbling (seemingly to themselves) on the streets were, in fact, schizophrenic. But today, they are just talking into their cell phones. I'm not a phone person, but I now carry along a cell phone to be able to report emergencies and ask my husband what he wants for dinner. Today's mobile phones have all kinds of goodies, like a digital camera so you can show people where, exactly, you are lost!
If I am walking for more than an hour, I like to have something handy to ward off hunger pangs. Trail mix is good as it replaces salt as well giving you a carbo boost. I like Clif bars because they are easy to chew, tasty, and don't crumble or melt.